Abstract
Two experiments were carried out to study groundnut (Arachis hypogaea L.) response to thinning time and intensity after anthesis at Redland Bay Farm, Southeast Queensland, Australia, during 1987/88 (Experiment 1) and 1989/90 (Experiment 2). Six cultivars were included in Experiment 1: Improved Virginia Bunch (IVB), NC7, Q18801 (Virginia type), TMV-2, McCubbin and Red Spanish (Spanish type); and two cultivars in Experiment 2: IVB and Red Spanish. These were thinned to 0 (control) or 50% at 42 or 91 days after planting (DAP) in Experiment 1; and 0 (control), 33, 50, 66 or 75% at 42 DAP in Experiment 2. Treatments were laid out in a randomized complete block design (RCBD) with three replications in both seasons. A 50% thinning at 42 DAP reduced intercepted photosynthetically active radiation but fadiation use efficiency, crop growth rate and total dry mass increased in all cultivars by maturity. A 50% thinning at 91 DAP significantly reduced groundnut production. Also, a thinning intensity of >66% reduced groundnut production. Thus, 50% plant removal during early reproductive growth may not significantly reduce groundnut production. This implies that an early control of insect pests (e.g. termites) could result in yield compensation amongst the remaining plants such that yield losses would be minimal by maturity of the crop.
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Claims 6
Claim · model-written summary
Thinning by 50% at 42 DAP reduced intercepted photosynthetically active radiation.
- Taxon
- groundnut (Arachis hypogaea L.)
Arachis hypogaeae1 - Treatment
- 50% thinning at 42 DAPe0
- Outcome
- intercepted photosynthetically active radiatione0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A 50% thinning at 42 DAP reduced intercepted photosynthetically active radiation”
e1“groundnut (Arachis hypogaea L.)”
Claim · model-written summary
Thinning by 50% at 42 DAP increased radiation use efficiency, crop growth rate and dry mass at maturity.
- Taxon
- groundnut (Arachis hypogaea L.)Arachis hypogaeae2
- Treatment
- 50% thinning at 42 DAPe1
- Outcome
- fadiation use efficiency, crop growth rate and total dry masse0
- Direction
- increasede0
- Qualifier
- in all cultivars by maturitye0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“fadiation use efficiency, crop growth rate and total dry mass increased in all cultivars by maturity”
e1“A 50% thinning at 42 DAP”
e2“groundnut (Arachis hypogaea L.)”
Claim · model-written summary
Thinning by 50% at 91 DAP significantly reduced groundnut production.
- Taxon
- groundnutArachis hypogaeae0
- Treatment
- 50% thinning at 91 DAPe0
- Outcome
- groundnut productione0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A 50% thinning at 91 DAP significantly reduced groundnut production”
Claim · model-written summary
Thinning above 66% reduced groundnut production.
- Taxon
- groundnutArachis hypogaeae0
- Treatment
- thinning intensity of >66%e0
- Outcome
- groundnut productione0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“a thinning intensity of >66% reduced groundnut production”
Claim · model-written summary
Early 50% plant removal may not significantly reduce groundnut production.
- Taxon
- groundnutArachis hypogaeae0
- Treatment
- 50% plant removal during early reproductive growthe0
- Outcome
- groundnut productione0
- Direction
- may not significantly reducee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“50% plant removal during early reproductive growth may not significantly reduce groundnut production”
Claim · model-written summary
Early insect pest control could allow yield compensation and minimal losses.
- Taxon
- groundnut (Arachis hypogaea L.)Arachis hypogaeae1
- Interactor
- termitesTermitoidaee0pest
- Outcome
- an early control of insect pests (e.g. termites)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“an early control of insect pests (e.g. termites) could result in yield compensation amongst the remaining plants such that yield losses would be minimal by maturity of the crop”
e1“groundnut (Arachis hypogaea L.)”
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